Commands by Abiden (11)

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Create a backup of the file.
It will create a backup of the filename. The advantage is that if you list the folder the backups will be sorted by date. The command works on any unix in bash.

Netcat ftp brute force

ZSH prompt. ':)' after program execution with no error, ':(' after failure.
sorry for my english

list files recursively by size

Kill any lingering ssh processes
Also ignoring "sshd" server is necessary since you should not kill ssh server processes.

Download file with multiple simultaneous connections
jrk's aria2 example is incorrect. -s specifies the global connection limit; the per-host connection limit is specified with -x.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

copy ACL of one file to another using getfacl and setfacl
If you copy windows file in e.g. cygwin the ACL might miss on the copied file. With this command you can copy the ACL of an existing file to another. WARNING: Existing ACL will get lost.

Display unique values of a column
Find the unique values of a column utilizing awk. Credits goes to here (posted by "era"): http://www.unix.com/shell-programming-scripting/77138-awk-print-distinct-col-values.html


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